<template>
  <div>
    <bread>
      <span slot="second">数据统计</span>
      <span slot="third">统计图</span>
    </bread>

    <el-card>
        <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import Bread from '../../base/breadcrumb'
import echarts from 'echarts'
// import _ from 'lodash'
export default {
  components: {
    bread: Bread

  },
  data() {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created() {},
  //   dom元素初始化后，渲染完毕为mounted时候
  async mounted() {
    var myChart = echarts.init(document.getElementById('main'))
    const { data: res } = await this.$http.get('reports/type/1')
    // 指定图表的配置项和数据
    if (res.meta.status !== 200) {
      return this.$message.error('获取报表数据失败')
    }
    // const newDate = _.merge(res.data, this.options)
    const newDate = { ...this.options, ...res.data }
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(newDate)
  },
  methods: {

  }
}
</script>

<style lang="less" scoped>
</style>
